24/7 Emergency Heating Repair — No Extra FeesCall Now
Mon–Fri: 7am–7pm | Sat: 8am–5pm1420 Nelson Road, Longmont, CO

Heating Services in Longmont, CO

Keep your home warm and safe all winter long. From furnace repair to heat pump installation, our NATE-certified technicians handle every heating need.

Heating Experts

Furnace Repair, Installation & Maintenance

Colorado winters are no joke. When your furnace goes out, you need a team that responds fast and fixes it right. We service all furnace brands and models, including gas, electric, and propane systems.

Emergency Furnace Repair

24/7 repair service with no after-hours fees. We will have your heat back on quickly.

New Furnace Installation

Energy-efficient systems from top brands with up to 10-year warranties and financing available.

Annual Furnace Tune-Ups

Prevent breakdowns, improve efficiency, and extend the life of your system with our maintenance plans.

Heat Pump Services

Repair, installation, and maintenance for efficient year-round heating and cooling in one system.

Schedule Heating Service
Furnace repair and installation services in Longmont Colorado

Our Heating Services

Complete heating solutions for every type of home and budget.

Gas Furnace Services

Repair, replacement, and maintenance for natural gas and propane furnaces. All major brands serviced.

Electric Heating

Electric furnace and baseboard heater repair and installation. Safe, efficient solutions for any home.

Heat Pumps

Dual heating and cooling efficiency. Ideal for Colorado's climate with available tax credits.

Boiler Repair

Hot water and steam boiler repair, replacement, and maintenance for radiant heating systems.

Ductless Mini-Splits

Zoned heating without ductwork. Perfect for additions, garages, and homes without existing ducts.

Thermostat Upgrades

Smart thermostats including WiFi and programmable models to save on energy costs.

HVAC maintenance technician performing annual furnace tune-up
Heating Tune-Up

Annual Heating Tune-Up

Prevent costly mid-winter breakdowns with our comprehensive heating maintenance service. Our 21-point inspection catches small issues before they become big problems.

  • Complete system inspection
  • Filter replacement
  • Burner and heat exchanger cleaning
  • Safety control testing
  • Carbon monoxide testing
  • Efficiency optimization
Book Tune-UpMaintenance Plans

Signs You Need Heating Repair

Do not wait for a complete breakdown. Call us if you notice any of these warning signs.

Uneven Heating

Some rooms are hot while others stay cold. This could indicate ductwork issues or a failing blower motor.

Strange Noises

Banging, rattling, or squealing sounds often mean loose or worn components that need immediate attention.

Rising Energy Bills

A sudden spike in heating costs usually means your system is working harder than it should due to inefficiency.

Frequent Cycling

If your furnace turns on and off constantly, it may be overheating or have a faulty thermostat.

Yellow Pilot Light

A yellow or flickering pilot light can indicate a dangerous carbon monoxide issue. Call immediately.

No Heat at All

Complete system failure requires professional diagnosis. We offer same-day emergency repair service.

Call for Emergency RepairFast Response

Stay Warm This Winter

Whether you need a quick repair or a full system replacement, Summit Heating & Air has you covered.

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